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Albretch
05-02-2007, 06:45 AM
Hi,
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I started knoppix with the cheatcode
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knoppix init 2
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then, after plugging in an external minidrive, I got:
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Synchronizing SCSI cache for disk sda:
FAILED
status = 0, message = 00, vhost = 1, driver = 00
<7> APIC error on CPU00: 01(01)
usb 1-2: device descriptor read/64, error -71
usb 1-2: device descriptor read/64, error -71
usb 1-2: device descriptor read/64, error -71
usb 1-2: device descriptor read/64, error -71
usb 1-2: device descriptor read/64, error -71
usb 1-2: device descriptor read/64, error -71
. . .
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I read from the error message and from some postings out there that it is related to the combination of USB + APIC (+ low speed devices + bad drivers?), that it also happens with printers, pen drives and wireless cards connected via USB, so I started Linux/knoppix with:
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knoppix apic=off noapic init 2
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then I didn't get the first error stanzas, but only the
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usb 1-2: device descriptor read/64, error -71
usb 1-2: device descriptor read/64, error -71
usb 1-2: device descriptor read/64, error -71
. . .
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ones repeatedly
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Why are these problems happening?
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How can I fix them?
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Thanks
lbrtchx